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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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b4645e277b
Remove class-to-interface-struct cast macros which don't work, don't make sense, and in some cases wouldn't even compile if used. Removal should be ok seeing that code which uses any of these is broken and bound to crash. Fixes #565607. API: remove GST_IMPLEMENTS_INTERFACE_CLASS API: remove GST_IS_IMPLEMENTS_INTERFACE_CLASS API: remove GST_URI_HANDLER_CLASS
82 lines
2.8 KiB
C
82 lines
2.8 KiB
C
/* GStreamer
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* Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
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* 2000 Wim Taymans <wtay@chello.be>
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*
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* gstinterface.h: Declarations of interface stuff
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef __GST_IMPLEMENTS_INTERFACE_H__
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#define __GST_IMPLEMENTS_INTERFACE_H__
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#include <gst/gstelement.h>
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G_BEGIN_DECLS
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#define GST_TYPE_IMPLEMENTS_INTERFACE \
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(gst_implements_interface_get_type ())
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#define GST_IMPLEMENTS_INTERFACE(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_IMPLEMENTS_INTERFACE, \
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GstImplementsInterface))
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#define GST_IS_IMPLEMENTS_INTERFACE(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_IMPLEMENTS_INTERFACE))
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#define GST_IMPLEMENTS_INTERFACE_GET_CLASS(inst) \
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(G_TYPE_INSTANCE_GET_INTERFACE ((inst), GST_TYPE_IMPLEMENTS_INTERFACE, \
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GstImplementsInterfaceClass))
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/**
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* GstImplementsInterface:
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*
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* Opaque #GstImplementsInterface structure.
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*/
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typedef struct _GstImplementsInterface GstImplementsInterface;
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typedef struct _GstImplementsInterfaceClass GstImplementsInterfaceClass;
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/* This small extra virtual function is here to provide an
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* interface functionality on a per-instance basis rather
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* than a per-class basis, which is the case for glib.
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*/
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struct _GstImplementsInterfaceClass {
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GTypeInterface parent;
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/* virtual functions */
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gboolean (* supported) (GstImplementsInterface *iface,
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GType iface_type);
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gpointer _gst_reserved[GST_PADDING];
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};
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#define GST_IMPLEMENTS_INTERFACE_CHECK_INSTANCE_CAST(obj, type, cast_t) \
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((cast_t *) gst_implements_interface_cast ((obj), (type)))
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#define GST_IMPLEMENTS_INTERFACE_CHECK_INSTANCE_TYPE(obj, type) \
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(gst_implements_interface_check ((obj), (type)))
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GType gst_implements_interface_get_type (void);
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/* wrapper functions to check for functionality implementation */
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gboolean gst_element_implements_interface (GstElement *element,
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GType iface_type);
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gpointer gst_implements_interface_cast (gpointer from,
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GType type);
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gboolean gst_implements_interface_check (gpointer from,
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GType type);
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G_END_DECLS
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#endif /* __GST_IMPLEMENTS_INTERFACE_H__ */
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